3-11 years
Saturn: lord of the rings 2
어려움: ★
★
★
Saturn: lord of the rings 1
어려움: ★
Icosa planet
어려움: ★
Dust in the universe
어려움: ★
★
★
★
Observing the Moon
어려움: ★
★
★
Shadow play
어려움: ★
★
★
The Earth is round
어려움: ★
Solar system model demo
어려움: ★
Modelling the night sky
어려움: ★
★
★
Making a rainbow
어려움: ★
Magic levitation
어려움: ★
Demonstrating light pollution
어려움: ★
Center of mass demostration
어려움: ★
Spicy Solar system
어려움: ★
Earth a ball
어려움: ★
Black hole
어려움: ★
As the world turns
어려움: ★
The Sun in the local horizon
어려움: ★
Solar motion demostrator
어려움: ★
How to build a big plywood demonstrator
어려움: ★
Projection camera for eclipse viewing
어려움: ★
★
How to make a Solar filter
어려움: ★
Refractory telescope
어려움: ★
Telescope basis 2
어려움: ★
Telescope basis
어려움: ★